CN209148608U - Non-methane total hydrocarbons gas chromatographic detection device - Google Patents
Non-methane total hydrocarbons gas chromatographic detection device Download PDFInfo
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- CN209148608U CN209148608U CN201821512283.8U CN201821512283U CN209148608U CN 209148608 U CN209148608 U CN 209148608U CN 201821512283 U CN201821512283 U CN 201821512283U CN 209148608 U CN209148608 U CN 209148608U
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Abstract
The utility model relates to a kind of non-methane total hydrocarbons gas chromatographic detection devices, belong to wasted nickel catalyst technical field, it further include ten-way valve, the first quantitative loop, the second quantitative loop, gas absorption column including carrier gas device, sample injector, the first chromatographic column, the second chromatographic column, detector；The utility model is used as gas circuit control element using ten-way valve, is able to achieve quantifying for air inlet and air inlet, and rotation ten-way valve spool can realize blowback of the supporting gas to detection gas, easy to operate to realize the two-way detection of non-methane total hydrocarbons, it is quantitative accurately；Total appropriate hydrocarbon gas that exhaust outlet is discharged can be imported in gas absorption column and is discharged after property Carbon fibe strainer adsorption cleaning by the utility model, reduced the content of pernicious gas in non-methane total hydrocarbons, reduced injury of the gas to experimenter of discharge.
Description
Technical field
The utility model relates to a kind of non-methane total hydrocarbons gas chromatographic detection devices, belong to wasted nickel catalyst technical field.
Background technique
Non-methane total hydrocarbons refers to the hydrocarbon in addition to methane, and component is sufficiently complex, it is mainly derived from gasoline
Burning, waste incineration, solvent evaporation and waste refinement etc..It is directly strong to human body when non-methane total hydrocarbons reaches certain concentration
Health is harmful outer, can also generate photochemical fog through solar radiation under certain conditions, cause damages to environment and the mankind, be one
Kind of the high-risk gas of pollution, according to national standard to the detection method of non-methane total hydrocarbons, with a root chromatogram column and a detection when detection
Device detects total hydrocarbon content, and another root chromatogram column separates methane and non-methane, by the methane of chromatographic column by second detector
Detection obtains methane content, and the difference of the two is the content of non-methane total hydrocarbons, and non-methane total hydrocarbons detects in general testing laboratory
When need to use gas chromatographic detection instrument, but have a disadvantage in that: measurement methane and total hydrocarbon need twice sample introduction cross column, successively to total
Hydrocarbon content, methane content measurement, more troublesome, in addition the exhaust outlet of sample introduction time gas chromatography detector is by non-methane total hydrocarbons gas
It is expelled directly out, pollutes laboratory environment, in a large amount of detections to gas, experimenter sucks accidentally and causes harm to the human body.
Utility model content
Against the above technical problems, the utility model aim is to provide a kind of non-methane total hydrocarbons gas chromatographic detection dress
It sets.
Non-methane total hydrocarbons gas chromatographic detection device described in the utility model, including carrier gas device, sample injector, the first color
Column, the second chromatographic column, detector are composed, further includes ten-way valve, the first quantitative loop, the second quantitative loop, gas absorption column；
Ten-way valve include successively on ten-way valve in be distributed clockwise the second carrier gas outlet, the first carrier gas inlet, quantify
Ring outlet, injection port, quantitative loop entrance, the second carrier gas inlet, the second carrier gas outlet, quantitative loop first interface, quantifies exhaust outlet
Ring second interface, carrier gas device include nitrogen cylinder, and nitrogen cylinder outlet is entered with the first carrier gas inlet, the second carrier gas respectively by pipeline
Mouth connection, first quantitative loop one end are connect with quantitative loop second interface, and the first quantitative loop other end and quantitative loop outlet connect, the
Two quantitative loop one end are connect with quantitative loop entrance, and the second quantitative loop other end is connect with quantitative loop first interface, the first chromatographic column
Entrance and the second carrier gas outlet connect, and the second quantitative loop entrance and the second carrier gas outlet connect, the first column outlet and second
Quantitative loop outlet is connect after collecting with detector, and injection port is connect with sample injector；
Gas absorption column is closed hollow cylinder, gas absorption column cavity internal upper part and lower part is respectively equipped with and inner wall
Fixed circular gratings plate is filled with activated carbon fibre strainer between two flase floors, and flase floor plays supporting role, is vented
Mouth is connected to by pipeline with gas absorption column cavity bottom, and gas absorption column cavity top passes through pipeline and external water storage container company
It connects.
Be equipped with aeration plate in water storage container, aeration panel surface has an equally distributed aeration opening, aeration plate by pipeline with
Gas absorption column cavity top connects, and can fill the stronger hydrogen peroxide of oxidisability in water storage container, inhale through activated carbon fibre strainer
The gas of attached filtering can be aerated in hydrogen peroxide, and contained reduced form gas with foreign flavor is oxidized destruction in gas, reach further net
The purpose of change.
It is filled with the divinylbenzene nitrogen-containing heterocycle monomer copolymer of 80-100 mesh in first chromatographic column, is filled out in the second chromatographic column
Silanized glass microballon filled with 60-80 mesh.
Row pressure mouth is additionally provided on gas absorption column.
Detector is flame ionization detector.
Sample injector is syringe or gas collecting bladders.
The utility model compared with prior art, has the advantages that.
(1) the utility model is used as gas circuit control element using ten-way valve, is able to achieve quantifying for air inlet and air inlet, rotation
Ten-way valve spool can realize blowback of the supporting gas to detection gas, to realize the two-way detection of non-methane total hydrocarbons, operation side
Just, quantitative accurate；
(2) total appropriate hydrocarbon gas that exhaust outlet can be discharged for the utility model imports in gas absorption column inhales through property Carbon fibe strainer
It is discharged after attached purification, reduces the content of pernicious gas in non-methane total hydrocarbons, reduce injury of the gas to experimenter of discharge.
Detailed description of the invention
State diagram when Fig. 1, an embodiment of the present invention ten-way valve are in sample air inlet；
State diagram when ten-way valve is in supporting gas air inlet in Fig. 2, Fig. 1；
Grating board structure schematic diagram in Fig. 3, Fig. 1.
In figure: 1, carrier gas device 2, the second quantitative loop 3, flase floor 4, row pressure mouth 5, water storage container 6, aeration plate 7,
Ten-way valve 8, activated carbon fibre strainer 9, gas absorption column 10, the first quantitative loop 11, the second chromatographic column 12, detector
13, the first chromatographic column；
71, the first carrier gas export the 72, first carrier gas inlet 73, quantitative loop outlet 74, exhaust outlet 75, injection port 76,
Quantitative loop entrance 77, the second carrier gas inlet 78, the second carrier gas outlet 79, quantitative loop first interface 80, quantitative loop second connect
Mouthful.
Specific embodiment
The utility model is described further below with reference to embodiment and Figure of description.
As shown in Figure 1-3, non-methane total hydrocarbons gas chromatographic detection device described in the utility model, including carrier gas device 1,
Sample injector, the first chromatographic column 13, the second chromatographic column 11, detector 12 further include that ten-way valve 7, the first quantitative loop 10, second are quantitative
Ring 2, gas absorption column 9；
Ten-way valve 7 includes successively exporting the 71, first carrier gas inlet in the first carrier gas being distributed clockwise on ten-way valve 7
72, quantitative loop outlet 73, exhaust outlet 74, injection port 75, quantitative loop entrance 76, the second carrier gas inlet 77, the second carrier gas outlet 78,
Quantitative loop first interface 79, quantitative loop second interface 80, carrier gas device 1 include nitrogen cylinder, and nitrogen cylinder outlet is distinguished by pipeline
It being connect with the first carrier gas inlet 72, the second carrier gas inlet 77,10 one end of the first quantitative loop is connect with quantitative loop second interface 80, the
A certain amount of 10 other end of ring is connect with quantitative loop outlet 73, and 2 one end of the second quantitative loop is connect with quantitative loop entrance 76, and second is quantitative
2 other end of ring is connect with quantitative loop first interface 79, and 13 entrance of the first chromatographic column is connect with the second carrier gas outlet 78, and second is quantitative
2 entrance of ring is connect with the first carrier gas outlet 71, and the outlet of the first chromatographic column 13 collects rear and detector 12 with the outlet of the second quantitative loop 2
Connection, injection port 75 are connect with sample injector；
Gas absorption column 9 is closed hollow cylinder, 9 cavity internal upper part of gas absorption column and lower part be respectively equipped with it is interior
The fixed circular gratings plate 3 of wall is filled with activated carbon fibre strainer 8 between two flase floors 3, and exhaust outlet 74 passes through pipeline and gas
The connection of 9 cavity bottom of body adsorption column, 9 cavity top of gas absorption column are connect by pipeline with external water storage container 5.
Aeration plate 6 is equipped in water storage container 5,6 surface of aeration plate has equally distributed aeration opening, and aeration plate 6 passes through pipe
Road is connect with 9 cavity top of gas absorption column.
The divinylbenzene nitrogen-containing heterocycle monomer copolymer of 80-100 mesh, the second chromatographic column 11 are filled in first chromatographic column 13
The interior silanized glass microballon filled with 60-80 mesh.
Row pressure mouth 4 is additionally provided on gas absorption column 9.
Detector 12 is flame ionization detector.
Sample injector is syringe.
As shown in Figure 1, state when ten-way valve 7 is in sample air inlet, using syringe by the gas of acquisition from injection port 75
It is pumped into, gas arrow along figure is run, and gas enters the first quantitative loop 10,2 quantification of the second quantitative loop, and the gas of discharge is through arranging
Port 74 enters gas absorption column 9 through 8 adsorption cleaning of activated carbon fibre strainer；
As shown in Fig. 2, rotation 7 spool of ten-way valve, state when ten-way valve 7 is in supporting gas air inlet, in carrier gas device 1
Nitrogen arrow direction along figure enters ten-way valve 7, and nitrogen is by the quantitative gas blowback in the first quantitative loop 10, the second quantitative loop 2
It is crossed after column to the second chromatographic column 11, the first chromatographic column 13 and enters the detection of detector 12, extra sample can continue from injection port 75
It is pumped into and enters gas absorption column 9 through 8 adsorption cleaning of activated carbon fibre strainer through exhaust outlet 74.
Claims (6)
1. a kind of non-methane total hydrocarbons gas chromatographic detection device, including carrier gas device (1), sample injector, the first chromatographic column (13),
Two chromatographic columns (11), detector (12), it is characterised in that: further include ten-way valve (7), the first quantitative loop (10), the second quantitative loop
(2), gas absorption column (9)；
Ten-way valve (7) includes successively on ten-way valve (7) in the first carrier gas outlet (71), the first carrier gas inlet being distributed clockwise
(72), quantitative loop outlet (73), exhaust outlet (74), injection port (75), quantitative loop entrance (76), the second carrier gas inlet (77), the
Two carrier gas export (78), quantitative loop first interface (79), quantitative loop second interface (80), and carrier gas device (1) includes nitrogen cylinder, nitrogen
Cylinder outlet is connect with the first carrier gas inlet (72), the second carrier gas inlet (77) respectively by pipeline, the first quantitative loop (10) one
End is connect with quantitative loop second interface (80), and the first quantitative loop (10) other end is connect with quantitative loop outlet (73), and second is quantitative
Ring (2) one end is connect with quantitative loop entrance (76), and the second quantitative loop (2) other end is connect with quantitative loop first interface (79), the
One chromatographic column (13) entrance exports (78) with the second carrier gas and connect, and the second quantitative loop (2) entrance and the first carrier gas outlet (71) are even
Connect, the first chromatographic column (13) outlet is connect after collecting with the second quantitative loop (2) outlet with detector (12), injection port (75) and into
The connection of sample device；
Gas absorption column (9) is closed hollow cylinder, gas absorption column (9) cavity internal upper part and lower part be respectively equipped with it is interior
The fixed circular gratings plate (3) of wall is filled with activated carbon fibre strainer (8) between two flase floors (3), and exhaust outlet (74) passes through
Pipeline is connected to gas absorption column (9) cavity bottom, and gas absorption column (9) cavity top passes through pipeline and external water storage container
(5) it connects.
2. non-methane total hydrocarbons gas chromatographic detection device according to claim 1, it is characterised in that: in water storage container (5)
Equipped with aeration plate (6), aeration plate (6) surface has equally distributed aeration opening, and aeration plate (6) passes through pipeline and gas absorption column
(9) cavity top connects.
3. non-methane total hydrocarbons gas chromatographic detection device according to claim 1, it is characterised in that: the first chromatographic column (13)
The interior divinylbenzene nitrogen-containing heterocycle monomer copolymer filled with 80-100 mesh, the second chromatographic column (11) is interior to be filled with 60-80 purpose
Silanized glass microballon.
4. non-methane total hydrocarbons gas chromatographic detection device according to claim 1, it is characterised in that: gas absorption column (9)
On be additionally provided with row pressure mouth (4).
5. non-methane total hydrocarbons gas chromatographic detection device according to claim 1, it is characterised in that: detector (12) is fire
Flame ionization detector.
6. non-methane total hydrocarbons gas chromatographic detection device according to claim 1, it is characterised in that: sample injector is syringe
Or gas collecting bladders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512283.8U CN209148608U (en) | 2018-09-14 | 2018-09-14 | Non-methane total hydrocarbons gas chromatographic detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512283.8U CN209148608U (en) | 2018-09-14 | 2018-09-14 | Non-methane total hydrocarbons gas chromatographic detection device |
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| CN209148608U true CN209148608U (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821512283.8U Active CN209148608U (en) | 2018-09-14 | 2018-09-14 | Non-methane total hydrocarbons gas chromatographic detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412191A (en) * | 2019-08-15 | 2019-11-05 | 南通乐尔环保科技有限公司 | A kind of non-first total hydrocarbon benzene homologues online gc of list detector list ten-way valve |
| CN115128193A (en) * | 2022-07-21 | 2022-09-30 | 天津津普利环保科技股份有限公司 | Detection device for non-methane total hydrocarbon and benzene series and application thereof |
-
2018
- 2018-09-14 CN CN201821512283.8U patent/CN209148608U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412191A (en) * | 2019-08-15 | 2019-11-05 | 南通乐尔环保科技有限公司 | A kind of non-first total hydrocarbon benzene homologues online gc of list detector list ten-way valve |
| CN115128193A (en) * | 2022-07-21 | 2022-09-30 | 天津津普利环保科技股份有限公司 | Detection device for non-methane total hydrocarbon and benzene series and application thereof |
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